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(No Model.) 2 Sheets-Sheet 1.

W. GRAIN.

TRIP FOR OPERATING BUTTON ATTAGHING MACHINES.

No. 353,623. Patented Nov. 30, 1886.

WITNESSES I INVENTOR (2/. 6 ade/z/ U/ 'GMJ/n/ ATTORNEY.

N PETERS, PMQ-Uthcgnphnr, Wasmnglan. n. c.

(No Model.) 2 Sheets-Sheet 2. W. GRAIN.

TRIP FOR OPERATING BUTTON ATTAGHING MACHINES.

No. 853,623. Patented Nov. 30, 1886.

INVENTOR I ll/ fwowa/ 'WITNESSESi BY Balw ATTORNEY.

UNITED STATES PATENT OF ICE.

WILLIAM GRAIN, OF BALTIMORE, MARYLAND, ASSIGNOR OF THREE- FOURTHS TOWISE BROS, OF SAME PLACE.

TRIP FOR OPERATING BUTTON-ATTAC'HING MACHINES.

SPECIFICATION forming part of Letters Patent No. 353,623, dated November30, 1886.

(No model.)

To all whom it may concern.-

Be it known that I, WILLIAM GRAIN, acitizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in Trips for Operating Button AttachingMachines, of which the following is a specification.

My invention relates to a device for operating button-attacliingmachines or eylet-machines, and is illustrated in the accompanyingdrawings, in which- Figure 1 is a side view, and Fig. 2 a front view, ofthe mechanism. Fig. 3 isa crosssection of the eccentric and itsspring-bolt, showing also the driving-shaft and the retractor of thespring-bolt. Fig. 4. is a side view of the eccentric. Figs. 5 and 6show, respectively, a

diam etrical section and a side view of the rotary head. Fig. 7 is atopview of the springbolt, its retractor, and the treadle for operating theretractor.

The letter A designates the fixed jaw of a button-attaching machine, oran eyelet-machine, as the case may be; I), the movable jaw, and c thereceptacle which contains the buttons or eyelets. The movable jaw bisset in motion by a lever, d, and a rod, 6, which connects the lever withthe jaw. These parts represent an ordinary button-attaching machine, andare of well-known construction, and are supported on a table, f. Myinvention relates to means for connection with the said jaw-moving lever(1, whereby power may be used for driving or operating the said machine.

A shaft, G, below the table f is to be driven by steam or other power,and thereon is a circular head, H, fixed in any suitable manner so as torotate always when the shaft turns. One side of the head has a plainsurface provided with a slot or hole, h, (see Figs. 5 and 6,) whichpreferably has a curved incline, as at h, from the said plain surface tothe deepest part h. An eccentric, I, is on the shaft G, alongside of therotary head H, and is loose, so that the shaft may turn without movingthe eccentric. The ring 13 surrounds the eccentric, and has a suitablerod, k, which projects upward. A trip-lever, L, has one end pivoted at Zto an upright, m, or to any other stationary device, and the movable endof said trip-lever is connected by a link, a, with the aforesaidjaw-moving lever d of the machine. The rod of the eccentric is connectedwith the trip-lever L. It will thus be seen that when the eccentric Iturns it will impart an up-and-down movement to the trip-lever L, andthis latter, by means of the link n, will move the jaw 72 of themachine.

The eccentric I is provided with a springbolt, 0, which when projectedenters the hole h in the rotary head H and forms a connection therewith,which will cause the eccentric t-o rotate with the head. When thespringbolt o is projected,its end will strike the plainsurface of therotary head, and the latter, by turning, will have its inclined slot orhole It brought around in the direction of the arrow until the end ofthe bolt 0 occupies the deepest part of the hole h, and then, as juststated, the eccenpresent instance consists of a collar secured on thebolt by a set-screw. The effect of the spring is to project that end ofthe bolt which enters the hole h, and thereby bring the bolthead 0against the side of the eccentric. To retract the bolt, therefore, aretractor, Q, is provided. The side of the retractor adjoining theeccentric is straight, or parallel with the side of the eccentric, andthe other side, 1', is diagonaltherefrom. Thisisshown more plainly inFig. 7. The retractor, therefore, is wedgeshaped, the point part beingtoward the front, or pointing in a direction opposite that in which theeccentric and rotary head revolve, and its normal position is in thepath of rotation of the head of the spring-bolt. Viewed from the side,(see Fig. 1,) it will be seen that the top of the retractor is curveddownward or slightly concaved. This retractor Q is mounted at the upperend of a vertical shank, g, which moves up and down freely in a suitablehearing, s, and at its lower end the shank is pivoted to a treadle, T. Arod and spring, a, connect the treadle with the table, and serve, bykeeping the treadle raised, to sustain the retractorQto its uppermostposition,where it is ICO in the path of the head of the spring-bolt, and

where it serves to keep said bolt normally retracted.

'From the foregoing description the operation of the device will beunderstood, and is as follows: The spring-bolt is withheld from.

the retractor Q and withdraw it from the head of the spring-bolt. Thelatter will then be projected until its point end enters the hole h ofthe rotary head, whereupon the eccentric will turn and the trip-lever Lwill move the jaw b of the machine. Upon releasing the foot from thetreadle the latter and the re tractor will be raised by the spring u,and when the eccentric has made one revolution the spring-bolt willbewithdrawn from the hole h,

and then the eccentric will cease turning. 7 Having described myinvention, I claim and desire to secure by Letters Patent of the UnitedStatest l. The combination, with thejaws of abutton-attaching or eyeletmachine, of a driveshaft, G, having a fixed rotary head, H, provided inits side witha hole, h, an eccentric, I, loose on the drive-shaft andprovided with a springbolt to engage with the hole in the rotary head, aconnection, substantially as described, between the eccentric and themovable jaw of the machine, and a retractor to keep the spring-boltnormally disengaged from the rotary head, as set forth.

' 2. Thecombination, with thejaws of a button-attaching or eyletmachine, of a driveshaft, G, having a fixed rotary head, H, provided inits side with a hole, h, an eccentric, I, loose on the drive-shaft andprovided with a tary head, a trip-leven'L, connected with the movablejaw, and also with the eccentric, and

a wedge-shaped retractor, Q. having its point t part in a directionopposite that in which the eccentric revolves and occupying a positionin the path of the spring-bolt, for the purpose set forth.

3. The combination, with thejaws of a button-attaching or eylet machine,of a driveshaft, G, having a fixed rotary head, H, provided in its sidewith a hole, h, an eccentric, I, loose on the drive-shaf't'and providedwith a spring-bolt to engage with the hole in the rotary head, atrip-lever, Ii, connected with the movable jaw, and also with theeccentric, a treadle. T, and a retractor to actuate the saidspring-bolt, said retractor being attached to the treadle, for thepurpose set forth.

In testimony whereof I affix my signature in the presence of twowitnesses.

"WILLI M GRAIN.

Witnesses:

JOHN E. MQRRIs, J No. T. MADDOX.

4o spring-bolt to engage with the hole in the ro- I

